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5th grade · Science · Unit 11 of 12

Earth's Systems & Oregon's Water

Land, water, air and life working together.

What your child practices

Practices how Earth's geosphere, hydrosphere, atmosphere and biosphere interact, how much of Earth's water is salty or frozen, and how Oregon communities protect resources, from clean rivers and rain gardens to bottle deposits and taking down dams on the Klamath River.

Oregon State Standards learning standard: 5.ESS2.1; 5.ESS2.2; 5.ESS3.1 · how Earth's systems interact, where Earth's water is, and how communities protect resources

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Most of Earth's water is…

    • salt water in the oceans
    • in rivers
    • in clouds
    • fresh water in lakes

  2. Question 2

    Plant roots crack rocks apart. Which systems interact?

    • Hydrosphere only
    • Biosphere and geosphere
    • None
    • Atmosphere and hydrosphere

  3. Question 3

    The hydrosphere is all of Earth's…

    • living things
    • air
    • water
    • rocks

  4. Question 4

    Why is fresh water precious?

    • We can drink seawater
    • It never runs out anywhere
    • There is more fresh than salt
    • Only a small part of Earth's water is fresh and easy to use

  5. Question 5

    Which saves water at home?

    • Take very long showers
    • Water the sidewalk
    • Fix leaky faucets
    • Run the hose all day

  6. Question 6

    Snow on Mount Hood melts, flows into rivers, and fish live there. How many systems are involved?

    • None
    • Only one
    • All four
    • Only two

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